Simple Machine - JSS2 Basic science Past Questions and Answers - page 1
What is a simple machine?
A complex mechanical device
A complex mechanical device
A high-tech gadget
None of the above
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Which of the following is an example of a lever?
Slide
Elevator
Seesaw
Stairs
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Which simple machine is commonly used in elevators?
Lever
Pulley
Inclined plane
Wedge
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What is the function of a wedge?
To hoist flags
To cut or split objects
To provide mechanical advantage
To open and close blinds
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Where would you typically find a screw?
In a seesaw
On a flagpole
In a jar lid
On stairs
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What is the primary purpose of an inclined plane?
To lift heavy objects
To split objects
To make it easier to move objects up or down
To hold doors open
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Which simple machine is commonly used in construction for lifting heavy objects?
Pulley
Wheel and axle
Screw
Wedge
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What is the primary function of a wheel and axle?
To rotate objects
To convert rotational motion into linear motion
To change the direction of a force
To split objects
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Which of the following is NOT an example of a simple machine?
Hammer
Scissors
Screwdriver
Elevator
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What is the purpose of a pulley?
To cut objects
To split objects
To lift objects or change the direction of a force
To provide mechanical advantage
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